Carpenter's portable precision adjustable length cutting gauge

Abstract

An adjustable and portable miter gauge characterized by an elongated workpiece engaging angle iron made of aluminum, terminating at one end with a power saw guide which is angularly adjustable, relative to the angle iron and a workpiece stop block contained by the angle iron, setting the workpiece relative to the guide for handy and successively accurate sawing without the necessity for measurement and pencil mark or the use of precut workpiece as pattern such as might cause discrepancies in measurement from the sawing of one workpiece to another.

I claim: 
     
       1. In the art of carpentry through the use of hand-powered cutting tools, a portable elongated cutting gauge which is conformable to a workpiece of rectangular dimensions, the elements comprising in relative coactive relationship; (A) an elongated and graduated extruded aluminum rule formed of connected vertical and horizontal flanges, said flanges being adapted to engage corresponding vertical and horizontal portions of a workpiece;   (B) a two-sided precision marker, one side of which lies contiguous and coplanar with the top of the horizontal flange of the rule and which is settable in overlying relation to the rule, the other side of the marker depending vertically opposite the vertical flange of the rule, said marker bearing a first setting means which is engageable with the horizontal flange of the rule;   (c) an adjustable elongated workpiece stop block, mounted contiguous the inside of the vertical and horizontal flanges of the rule, said stop block and said marker mounting a second setting means to place the stop block in adjustable contact with the marker, said stop block being independently moveable relative to the rule; and   ( D) an angular guide for the saw, swivel mounted between its ends and at one end of the rule and an adjustably graduated arm thereon, connecting guide and rule for presetting the angle of the guide relative to the rule and the marker.   
     
     
       2. The apparatus according to claim 1, wherein the stop block supports an extension at an end thereof whereby to increase the abutment area of the contiguous stabilization of the workpiece.